EP 2280657 A1 20110209 - BIDIRECTIONAL EXPANDABLE HEAD FOR ROTATIONAL ATHERECTOMY DEVICE
Title (en)
BIDIRECTIONAL EXPANDABLE HEAD FOR ROTATIONAL ATHERECTOMY DEVICE
Title (de)
BIDIREKTIONAL EXPANDIERBARER KOPF FÜR EINE DREHBARE ATHEREKTOMIEVORRICHTUNG
Title (fr)
TÊTE À EXPANSION BIDIRECTIONNELLE POUR DISPOSITIF ROTATIF D'ATHÉRECTOMIE
Publication
Application
Priority
- US 2009044299 W 20090518
- US 5896208 P 20080605
- US 46613009 A 20090514
Abstract (en)
[origin: WO2009148805A1] A rotational atherectomy device that includes an expandable head that can clean a blockage from vessel larger than its rest diameter, in which the drive shaft may rotate in two opposite directions and may have different abrasive characteristics for each rotation direction. In one direction, the head may be configured for cutting and/or slicing, which may be well suited to removing particularly soft blockage material. In the other direction, the head may be configured for grinding, scraping and/or sanding, which may be well suited to removing particularly hard blockage material. The head includes one or more arms that are pivotally or hingedly attached to the drive shaft. One or more abrasive elements are disposed on or are attached to the one or more arms. The abrasive elements have a cutting feature, such as a sharpened edge that cuts like a razor blade when the drive shaft is rotated in the "cutting" direction. The abrasive elements also have a grinding feature, such as an abrasive material disposed on the abrasive element adjacent to the sharpened edge, which grinds away a blockage when the drive shaft is rotated in the "grinding" direction.
IPC 8 full level
A61B 17/32 (2006.01); A61B 17/3207 (2006.01)
CPC (source: EP US)
A61B 17/320725 (2013.01 - EP US); A61B 17/320758 (2013.01 - EP US); A61B 2017/320004 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009148805 A1 20091210; AU 2009255433 A1 20091210; AU 2009255433 B2 20140619; CA 2722317 A1 20091210; CA 2722317 C 20160705; CN 102056558 A 20110511; CN 102056558 B 20140910; EP 2280657 A1 20110209; EP 2280657 A4 20131016; EP 2280657 B1 20160706; ES 2594707 T3 20161222; JP 2011522597 A 20110804; JP 5285768 B2 20130911; US 2009306689 A1 20091210; US 9186170 B2 20151117
DOCDB simple family (application)
US 2009044299 W 20090518; AU 2009255433 A 20090518; CA 2722317 A 20090518; CN 200980120662 A 20090518; EP 09758966 A 20090518; ES 09758966 T 20090518; JP 2011512517 A 20090518; US 46613009 A 20090514